JSFiddle - React, Tailwind, and code Playground

by Mottie

HTML

<div class="wrapper">
   <div class="a">a</div>
   <div class="b">b</div>
   <div class="a">a</div>
   <div class="b">b</div>
   <div class="a">a</div>
   <div class="c">c</div>
</div>

JavaScript

var wrappers = [ 'a', 'b', 'c'];
$.each(wrappers, function(index, value){
  $('.' + value).wrapAll('<div class="' + value + '-wrapper"></div>');
});